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N. J. WYETH. 5 Ice implment.

Patented 0m. 25, 1843.

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cf 138 'ubridg'le, 1' n the charity of Middlesex and State of Massachusetts, have invented new and V securedto me by Letters Patent;

merkin'g out the shape or thelhlocks'of ice on 1 I imprevements being appiimhie to this imp'le-' the. cutter 'afor'enemedQ Rig, tis'e side eIe'vef ,[tion of suche markeggehd'Fig.i5 is'a long-L tndinelvertial section (in ,th'e'li no 'A B, Fig. j 'The'mein oqie'cts of my improvements'qare' to-raise the cutting teeth-or chisels, whether offe'cntter or "marker; with fixeility front the groove, when desireii, and enable them itohe' "Plfl e tQP ace with disp fifihf i 3 regulate the position o'fthe cuttingfil f ers; I do hereby deelane thetthe follow mingdescription, taken in connection with the accompanying drewin'g8,,hcreinafter referred I to, forms "a full-and exaetspecifieation of the principfsof my said improvements, by which t y m y tionsibf alike-class, together with such parts drawings represent my improvements.

v Figure- 1 is a sidejelevetion of an iee-eutter, 1 and Big. 2 ice plan of. thesemq hoth figures showing the application ofimy'improyements 1 to the above-named.apparatus."- 'Fig.'3 is a;

ma.lting snch change. KOJDOVBQH' the teeth equally, or to give theme peral'lelaniotioh so asto have the-bottom of the furrowhcrizontal; to always preservethe perpe'ii'dicnlerity oi the chisels, end furthermeregto enable cine tq us'e;

' "iMneovs'MNT-m ICE 0 v JEP K tee-twee; Assn u H 5 me e-4ND meme.

Specification forming part 01' Letters Patent No. liflll rifgflni-ed October 25, 1M3.

To all whmit it may coitcerrti f Be it known that I, RATHAMEL J. WYETH,

useful I improvements in ma Gutters and Marksame, wherein 'Ihave set forth the nature and be distinguished from other. invenor combinhtions as I lelaim and wish'to have 'The figures of the accompanying plate 0! plan of. e1 iharker or cutting-machine for the surface of the ice inthe'pond prier'to-cut- ,ting the grooves with 'thecgtfereferesaid, my

merit in substantially the "same manner as to moved, turned round; and nan'sportd asto cut grooves of different depths, and'in;

a tool or chisehhowever slierfiitmey be; which,

ea, Figs lend 2, erethe back bar of enticecuttenwhieh may be for-lined of twopieces of "drawings; or it may be in one piece with suitable slots for the insertion of the teeth or'chie said slots by means of the screws and nuts repdistance lower than that of the one which prethrough which the fastcningserews c 0' pass,

. and forming'two holes or asecondary hol'e,- d

d d, in each of the'chis'els b'b b, as shown in other one-in the series,(by using the upperor lower edges 'stillthnvethe same relative position; The back bar, a a, is connected to the *agonal tnrning arms or lever-bars f fg' g, the

ranged and operating substantially simi lanjtcthose which connect the two parts, of ejects" irnon gmi elhehruler. 'The bearing-rnm xelfsfepe are shaped as seen in Figylendz-ironedor surface of the ice, being arranged at snfli'cien't indelso to allow a free escape to theeliips of end, 9 g. are arrengedone on each side of the back her and y are connected fht 'their *lower zen'cis to-the shortsh'afts or turning pins h h Land 1;, so'asr-to tu'r'n' with said, shalt sor pins: 'lhese shafts orpins rest emi tnrnfin proper li'and; 2.; Thefronts ley er hars, f are ten:-

metal firmly riveted together,-asshown in-the elsb b b, &e., these chisels being fastened in sented at .c -c 0,.Figs. 1 and 2. Each of the v chisels b b b, after the front one, is arranged so" that itgbottomedge or face shall be a regn'lnr cedes it inqthe ordinary way, and byvzirying the position of the hol in the hack haij Fig. 1, each chisel may be snbstitutedl'or'any lower hole-"in the 'same,);and the bottomor .heeringirunners e '0, Figs. 1 and 2, by thediforme'r' being nearthe front and the latter neer. there-armor the apparatus, said bars being erotherwise-properly fixed so es'to slide'o'verthe distance apart to permit thefree rise anghdescent of the enttingehisels hetweenftheisame,

ice made by the cutters; Thele'iter-ba'rs ff hearin s ,the tunne s ages shown in the. drawings; the rear shafglt ektending entirely a he sp e betwee sai w 0 381w ibraeethe sameor'strengthen t eir connection,- enue h .e e hsit; yn ssfli o g e mete, sofas to permit the gt nioyeinentief the chie'els, as before specified. .flhe lever-bars are 5 ele ds imilarly' connected at their'to s (so as to andturna=infiiroper hearings 0n the 

